Extraordinary abandoned buildings

On a rocky peak in the Stara Planina, a range of mountains in the Balkans, the
Bulgarian Communist Party Headquarters was built over seven years, between
1974 and 1981, with the help of more than 6,000 workers. It featured a vast
auditorium decorated with numerous frescoes of communist leaders and
quasi-mythological scenes of heroic battles. But the building was open for
scarcely longer than it took to erect, closing in 1989 after the fall of the
Soviet Union. It now stands derelict and ravaged by the elements - a fitting
tribute to a failed ideology